Scheduling-Based Optimization for Motion Coordination of Autonomous Vehicles at Multilane Intersections

This paper considers the motion coordination problem of autonomous vehicles in an intersection of a traffic network. The featured challenge is the design of an intersection traffic manager, in the form of a supervisory control algorithm, that regulates the motion of the autonomous vehicles in the intersection. We cast the multivehicle coordination task as an optimization problem, with a one-dimensional search-space. A model- and optimization-based heuristic method is employed to compute the control policy that results in the collision-free motion of the vehicles at the intersection and, at the same time, minimizes their delay. Our approach depends on a computation framework that makes the need for complex analytical derivations obsolete. A complete account of the computational complexity of the algorithm, parameterized by the configuration parameters of the problem, is provided. Extensive numerical simulations validate the applicability and performance of the proposed autonomous intersection traffic manager.

ESLR - Energy Based Stable Link Routing in Mobile Adhoc Networks

Mobile ad hoc network (MANET) comprises of highly dynamic mobile nodes where reliable and stable path routing is a major issue which affects uninterrupted communication. There are so many stable routing protocols are developed as a promising solution. Nevertheless, while developing stable routes energy based a vital role. This paper proposed a novel energy based stable link routing (ESLR) protocol that chooses high energy routes to create stable link communication. In our proposed technique, traffic manager elected to control the entire operation of the network. For that it observes all the activities of every single node that participating in the communication. When a node wants to send packets, the traffic manager chooses routes between the source-destination pair based on energy i.e. next forwarding link is created between the highest energy nodes. Thereby the stable links are created which can perform long-lasting communication. The proposed protocol has minimum of five routes for every single source-destination pair. So, without any delay next alternate path is selected if anyone of the intermediate node reaches its minimum energy. The simulation is performed to observe the performance of the proposed ESLR protocol. In experimental results, the observed performance of the proposed technique is compared with the existing AODVM and LSMRP protocols in terms of routing control overhead, number of route discovery and average end-to-end delay and the results are plotted.

A two-stage policy for improving the efficiency of the traffic network by providing value-added ATIS service

Based on the pay-per-use charge in mobile Apps, value-added advanced traveler information systems (VATIS) service can be provided in traffic networks. From the perspective of the traffic manager, we propose a two- stage policy for improving the efficiency of traffic networks by providing VATIS service. At the first stage, the traffic manager selects several ATIS service providers, then offers seed fund to each of them to encourage VATIS service provision. At the second stage, the traffic manager announces a given target of the total market penetration of VATIS service and encourages service providers to achieve it together. If they could complete the task, compensation will be paid. To evaluate the efficiency of this policy, four scenarios are formulated by four bi-level models, and the total travel time is set as the evaluation indicator. Numerical experiments show that, the suggested policy can reduce total travel time dramatically if the market penetration target has been appropriately selected.